Weather

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Weather Wise The Elements of Weather

Understanding Basic Concepts - explain the difference between weather and climate and the factors that influence both of these systems - identify patterns in air movement - identify the effects of air pressure

What is Weather?

http://oncampus.richmond.edu/academics/education/projects/webunits/weather/how.html

1. Define weather.:This is the layer which is closest to the earth's surface, or the actual sky that we can see.
2. What four factors affect weather:Air in the atmosphere is sinking and pressure of the atmosphere is higher at the surface.Similar to the leading edge of army soldiers moving forward along the front line, the leading edge of an air mass moves forward along a weather front.

Weather vs Climate

http://www.bom.gov.au/lam/climate/index.htm

3. What is the difference between climate and weather? There is a variety of ways to explain the difference. Here are a few that may shed some light.

Air Pressure

http://www.usatoday.com/weather/tg/whighlow/whighlow.htm
4. Complete the following chart:

	High Pressure	Low Pressure
Air movement (up or down)	. up	.down down
Temperature of air	. down	. up
Wind movement at ground	. up	. up
Expected weather	. down	. up

Weather Wise Measuring the Weather

Developing Skills of Inquiry, Design and Communication - design, construct, and test a variety of weather instruments - use appropriate vocabulary, including correct science and technology terminology, in describing their investigations and observations

The following web site describes some of the instruments meteorologists use to collect data about the weather.
http://oncampus.richmond.edu/academics/education/projects/webunits/weather/instruments.html

Use the information to complete the chart.
The source of this information is American so you may have to determine the equivalent metric unit to record in the chart.

Instrument Name Barometer	What It Measures measures atmospheric pressure	Unit of Measurement Millibars
. Thermometer	measures the temperature in degrees	degrees Celsius or degrees Fahrenheit
.Rain gauge	measures the amount of rainfall	. Not only does a rain gauge measure rainfall, but also all other forms of precipitation.
.Campbell Stokes Recorder	measures sunshine	number of hours
.Anemometer	measures wind speed	in mph
. Wind Vane/Wind Sock	measures wind direction	pointing towards North, East, South or West
.Hygrometer	measures the temperature and amount of humidity in degrees	Fahrenheit and degrees Celsius
Meteorologists	measure the amount of cloud cover in "oktas	in okats

Weather Wise Clouds

Understanding Basic Concepts - explain the formation of clouds and the effects of different cloud formations on weather and climate

Use this web site to answer the following questions.
http://oncampus.richmond.edu/academics/education/projects/webunits/weather/clouds.html

1. What are clouds?Clouds are a visible mist of billions of water and ice particles floating in the sky
2. Explain how clouds form.Clouds form when air cools below its saturation point and causes water vapor to condense into tiny water droplets
3. What are the 3 "families" of clouds and what do their Latin names mean?of clouds: cirrus, cumulus, and stratus. These are the latin names given to clouds in 1804
4. Follow the links to learn about each type of cloud and then complete the table on the next page.
To help you identify clouds, download, print and construct the following "Cloud Key".
http://teacher.scholastic.com/lessonrepro/reproducibles/profbooks/cloudkey.pdf
After completing the chart, you could try a Cloud Quiz at;
http://www.bom.gov.au/lam/Students_Teachers/animations/cloudzstart.shtml

Weather Wise Forecasting

Understanding Basic Concepts -recognize large-scale and local weather systems - predict local weather patterns using data from their own observations of weather and from weather reports - identify patterns in air movement

Read the details at http://weathereye.kgan.com/cadet/forecast/camp.html and follow the links.
The following questions and organizers will help you keep track of the crucial information you’ll need.

Cloud Forecasting

Cloud Type	Description	Possible Weather
cirrus	Cirrus clouds are thin and wispy, and are found very high in the sky.	thin and wispy, and are found very high in the sky. Cirrus clouds point in the direction the wind is blowing. No precipitation falls from cirrus clouds.
altocumulus	These clouds are like fuzzy bubbles in long rows or strings.	it usually means that a cold front is coming. If it's summertime and warm and humid, altocumulus clouds may turn into thunderstorms when the cold front approaches.
nimbostratus	These clouds are dark and low-hanging clouds that cover the whole sky	They bring with them light to moderate precipitation.
cumulus	These clouds look like big cotton balls in the sky.	Normally they don't carry any rain, but during the spring and summer they can change into cumulonimbus clouds.
cumulonimbus	They are tall and wide clouds that have heavy rain, thunder	If you see these clouds on the horizon, it is likely it will rain very soon.

Wind Forecasting

Wind Direction	Possible Weather
North	If you see these clouds on the horizon, it is likely it will rain very soon.
South	The direction behind you will be south
East	To your left is the direction west, and to your right will be the direction east.
West	west, and to your right will be the direction

Missing front matching